The 2017 Zero S has 3 recalls, the most serious being an ABS software defect that can cause the brakes to respond incorrectly during hard braking, raising the risk of a crash.
The ABS hydraulic control unit may contain incorrect vehicle model information, which can cause the anti-lock braking system to behave unpredictably when the brakes are applied hard enough to trigger it. Instead of modulating brake pressure to help the rider maintain control, the system may not respond as expected, reducing stopping effectiveness. There is also a turn signal concern affecting certain trims: if a turn signal bulb fails, the flasher unit may not increase its flash rate to warn the rider that the signal has stopped working. Without that faster-flashing alert, the rider may continue riding unaware that other drivers cannot see their intended turns or lane changes.